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<a href="model-merge-reducer-main_8_c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright 2012, Google Inc.</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// </span>
<a name="l00004"></a>00004 <span class="comment">// Redistribution and use in source and binary forms, with or without</span>
<a name="l00005"></a>00005 <span class="comment">// modification, are permitted provided that the following conditions are</span>
<a name="l00006"></a>00006 <span class="comment">// met:</span>
<a name="l00007"></a>00007 <span class="comment">// </span>
<a name="l00008"></a>00008 <span class="comment">//   * Redistributions of source code must retain the above copyright</span>
<a name="l00009"></a>00009 <span class="comment">//     notice, this list of conditions and the following disclaimer.</span>
<a name="l00010"></a>00010 <span class="comment">//   * Redistributions in binary form must reproduce the above</span>
<a name="l00011"></a>00011 <span class="comment">//     copyright notice, this list of conditions and the following disclaimer</span>
<a name="l00012"></a>00012 <span class="comment">//     in the documentation and/or other materials provided with the</span>
<a name="l00013"></a>00013 <span class="comment">//     distribution.</span>
<a name="l00014"></a>00014 <span class="comment">//   * Neither the name of Google Inc. nor the names of its</span>
<a name="l00015"></a>00015 <span class="comment">//     contributors may be used to endorse or promote products derived from</span>
<a name="l00016"></a>00016 <span class="comment">//     this software without specific prior written permission.</span>
<a name="l00017"></a>00017 <span class="comment">//</span>
<a name="l00018"></a>00018 <span class="comment">// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span>
<a name="l00019"></a>00019 <span class="comment">// &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span>
<a name="l00020"></a>00020 <span class="comment">// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span>
<a name="l00021"></a>00021 <span class="comment">// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span>
<a name="l00022"></a>00022 <span class="comment">// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00023"></a>00023 <span class="comment">// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span>
<a name="l00024"></a>00024 <span class="comment">// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,           </span>
<a name="l00025"></a>00025 <span class="comment">// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY           </span>
<a name="l00026"></a>00026 <span class="comment">// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span>
<a name="l00027"></a>00027 <span class="comment">// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span>
<a name="l00028"></a>00028 <span class="comment">// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00029"></a>00029 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00030"></a>00030 <span class="comment">//</span>
<a name="l00031"></a>00031 <span class="comment">//</span>
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include &lt;cstdio&gt;</span>
<a name="l00041"></a>00041 <span class="preprocessor">#include &lt;iostream&gt;</span>
<a name="l00042"></a>00042 <span class="preprocessor">#include &lt;string&gt;</span>
<a name="l00043"></a>00043 <span class="preprocessor">#include &quot;../utils/kdebug.h&quot;</span>
<a name="l00044"></a>00044 <span class="preprocessor">#include &quot;<a class="code" href="model-merge-reducer_8_h.html" title="Reducer classes for trainer.">model-merge-reducer.H</a>&quot;</span>
<a name="l00045"></a>00045 
<a name="l00046"></a>00046 <span class="keyword">using namespace </span>std;
<a name="l00047"></a>00047 <span class="keyword">using</span> <a class="code" href="classreranker_1_1_reducer.html" title="Abstract base-class for a streaming reducer.">reranker::Reducer</a>;
<a name="l00048"></a>00048 <span class="keyword">using</span> <a class="code" href="classreranker_1_1_feature_reducer.html" title="A reducer class which processes FeatureMessage proto buffers.">reranker::FeatureReducer</a>;
<a name="l00049"></a>00049 <span class="keyword">using</span> <a class="code" href="classreranker_1_1_model_info_reducer.html" title="A reducer class which processes ModelMessage protocol messages and merges them into a single message...">reranker::ModelInfoReducer</a>;
<a name="l00050"></a>00050 <span class="keyword">using</span> <a class="code" href="classreranker_1_1_symbol_reducer.html" title="A reducer class which processes SymbolMessage messages and returns a set of unique them into a single...">reranker::SymbolReducer</a>;
<a name="l00051"></a>00051 
<a name="l00052"></a><a class="code" href="model-merge-reducer-main_8_c.html#a0ddf1224851353fc92bfbff6f499fa97">00052</a> <span class="keywordtype">int</span> <a class="code" href="candidate-set-proto-reader-test_8_c.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>* argv[]) {
<a name="l00053"></a>00053   <span class="keywordtype">int</span> option_char;
<a name="l00054"></a>00054   <span class="keywordtype">bool</span> uniform_mix = <span class="keyword">false</span>;
<a name="l00055"></a>00055   <span class="keywordtype">int</span> mix_denominator = 1.0;
<a name="l00056"></a>00056   <span class="keywordtype">bool</span> reduce_symbols = <span class="keyword">false</span>;
<a name="l00057"></a>00057 
<a name="l00058"></a>00058   <span class="comment">// Invokes member function `int operator ()(void);&#39;</span>
<a name="l00059"></a>00059   <span class="keywordflow">while</span> ((option_char = getopt(argc, argv, <span class="stringliteral">&quot;ud:S&quot;</span>)) != EOF) {
<a name="l00060"></a>00060     <span class="keywordflow">switch</span> (option_char) {  
<a name="l00061"></a>00061     <span class="keywordflow">case</span> <span class="charliteral">&#39;S&#39;</span>:
<a name="l00062"></a>00062       reduce_symbols = <span class="keyword">true</span>;
<a name="l00063"></a>00063     <span class="keywordflow">case</span> <span class="charliteral">&#39;u&#39;</span>:
<a name="l00064"></a>00064       uniform_mix = <span class="keyword">true</span>;
<a name="l00065"></a>00065       <span class="keywordflow">break</span>;
<a name="l00066"></a>00066     <span class="keywordflow">case</span> <span class="charliteral">&#39;d&#39;</span>:
<a name="l00067"></a>00067       mix_denominator = atoi(optarg);
<a name="l00068"></a>00068       <span class="keywordflow">break</span>;
<a name="l00069"></a>00069     <span class="keywordflow">case</span> <span class="charliteral">&#39;?&#39;</span>:
<a name="l00070"></a>00070       cerr &lt;&lt; <span class="stringliteral">&quot;usage: &quot;</span> &lt;&lt; argv[0] &lt;&lt; <span class="stringliteral">&quot;[-K] [-u] [-d denom]&quot;</span> &lt;&lt; endl;
<a name="l00071"></a>00071       cerr &lt;&lt; <span class="stringliteral">&quot;-u - mix the features uniformly (overrides -d)&quot;</span> &lt;&lt; endl;
<a name="l00072"></a>00072       cerr &lt;&lt; <span class="stringliteral">&quot;-d - normalize mixture with this value&quot;</span> &lt;&lt; endl;
<a name="l00073"></a>00073       cerr &lt;&lt; <span class="stringliteral">&quot;-S - Run this in symbol reducer mode (unique)&quot;</span> &lt;&lt; endl;
<a name="l00074"></a>00074       <span class="keywordflow">return</span> -1;
<a name="l00075"></a>00075       <span class="keywordflow">break</span>;
<a name="l00076"></a>00076     }
<a name="l00077"></a>00077   }
<a name="l00078"></a>00078 
<a name="l00079"></a>00079   <a class="code" href="classreranker_1_1_feature_reducer.html" title="A reducer class which processes FeatureMessage proto buffers.">FeatureReducer</a> feat_reducer(uniform_mix, mix_denominator);
<a name="l00080"></a>00080   <a class="code" href="classreranker_1_1_model_info_reducer.html" title="A reducer class which processes ModelMessage protocol messages and merges them into a single message...">ModelInfoReducer</a> model_reducer;
<a name="l00081"></a>00081   <a class="code" href="classreranker_1_1_symbol_reducer.html" title="A reducer class which processes SymbolMessage messages and returns a set of unique them into a single...">SymbolReducer</a> sym_reducer;
<a name="l00082"></a>00082   <span class="keywordtype">string</span> empty_string;
<a name="l00083"></a>00083 
<a name="l00084"></a>00084   <span class="comment">// Process each of the input records.  This reducer assumes that the input is</span>
<a name="l00085"></a>00085   <span class="comment">// &lt;FeatureId, encoded FeatureMessage&gt; pair per line in the following format:</span>
<a name="l00086"></a>00086   <span class="comment">// FeatureString \t EncodedMsg \n</span>
<a name="l00087"></a>00087   <span class="keywordflow">while</span> (cin) {
<a name="l00088"></a>00088     <span class="comment">// Process input.</span>
<a name="l00089"></a>00089     <span class="keywordtype">string</span> input_data;
<a name="l00090"></a>00090     getline(cin, input_data);
<a name="l00091"></a>00091     <span class="keywordflow">if</span> (input_data.empty()) {
<a name="l00092"></a>00092       <span class="keywordflow">break</span>;
<a name="l00093"></a>00093     }
<a name="l00094"></a>00094     <span class="keywordflow">if</span> (reduce_symbols) {
<a name="l00095"></a>00095       sym_reducer.<a class="code" href="classreranker_1_1_symbol_reducer.html#a0b83f7605c7000eb3d4cbcaab193c69b">Reduce</a>(input_data, empty_string);
<a name="l00096"></a>00096     } <span class="keywordflow">else</span> {
<a name="l00097"></a>00097       <span class="keywordtype">int</span> delim_pos = input_data.find(<span class="charliteral">&#39;\t&#39;</span>);
<a name="l00098"></a>00098       <span class="keywordtype">string</span> feat_id = input_data.substr(0, delim_pos);
<a name="l00099"></a>00099       <span class="keywordtype">string</span> value = input_data.substr(delim_pos + 1);
<a name="l00100"></a>00100 
<a name="l00101"></a>00101       <a class="code" href="classreranker_1_1_reducer.html" title="Abstract base-class for a streaming reducer.">Reducer</a>* reducer;
<a name="l00102"></a>00102       <span class="keywordflow">if</span> (feat_id.compare(ModelInfoReducer::kModelMessageFeatureName) == 0) {
<a name="l00103"></a>00103         reducer = &amp;model_reducer;
<a name="l00104"></a>00104       } <span class="keywordflow">else</span> {
<a name="l00105"></a>00105         reducer = &amp;feat_reducer;
<a name="l00106"></a>00106       }
<a name="l00107"></a>00107       reducer-&gt;<a class="code" href="classreranker_1_1_reducer.html#a0694ec07d475f3a9996f8788efe4936d">Reduce</a>(feat_id, value);
<a name="l00108"></a>00108     }
<a name="l00109"></a>00109   }
<a name="l00110"></a>00110   <span class="keywordflow">if</span> (!reduce_symbols) {
<a name="l00111"></a>00111     feat_reducer.<a class="code" href="classreranker_1_1_feature_reducer.html#a0c995100fd74abc0bd19264a409c2a2b">Flush</a>();
<a name="l00112"></a>00112     model_reducer.<a class="code" href="classreranker_1_1_model_info_reducer.html#a5e8922b1c5caca6cbbe2224a4cf76821">Flush</a>();
<a name="l00113"></a>00113   } <span class="keywordflow">else</span> {
<a name="l00114"></a>00114     sym_reducer.<a class="code" href="classreranker_1_1_symbol_reducer.html#aca0ef4ab27a2ec21629abe19fb092eb1">Flush</a>();
<a name="l00115"></a>00115   }
<a name="l00116"></a>00116   <span class="keywordflow">return</span> 0;
<a name="l00117"></a>00117 }
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